What “extended hours” includes
U.S. real-time extended hours
Hours: 7:00 AM–8:00 PM ET
Availability: Pro plan or higher
Markets: U.S. & Cboe Europe only (no extended-hours support for other markets)
Supported intervals:
1-minute
5-minute
15-minute
30-minute
Streaming: WebSocket supports extended hours for U.S. markets only
U.S. historical extended hours
Hours covered: 4:00 AM–8:00 PM ET
Availability: for records older than one day
How to include pre/post-market data
Add prepost=true to these endpoints:
/time_series/quote/price/eod
Example request
https://api.twelvedata.com/quote?symbol=AAPL&exchange=NASDAQ&prepost=true &apikey=YOUR_API_KEY
Example response
{
"symbol": "AAPL",
"exchange": "NASDAQ",
"name": "Apple Inc",
"currency": "USD",
"datetime": "2026-01-12 07:58:00",
"timestamp": 1768204680,
"open": "187.20",
"high": "187.45",
"low": "187.10",
"close": "187.38",
"volume": "412385",
"previous_close": "186.95",
"change": "0.43",
"percent_change": "0.23",
"is_extended_hours": true
}
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